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Dr Hamidi Year 10 Physics > Energy Resources > Flashcards

Energy Resources Flashcards

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1
Q

What is the primary source of energy for the Earth?

A

The Sun

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2
Q

True or False: Fossil fuels are renewable energy resources.

A

False

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3
Q

Fill in the blank: __________ is a type of renewable energy that uses wind to generate electricity.

A

Wind energy

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4
Q

What are the three main types of fossil fuels?

A

Coal, oil, and natural gas

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5
Q

Which energy resource is obtained from the heat stored within the Earth?

A

Geothermal energy

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6
Q

What is biomass energy?

A

Energy produced from organic materials such as plants and animal waste.

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7
Q

True or False: Hydroelectric power is generated by harnessing the energy of flowing water.

A

True

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8
Q

What is the process of converting solar energy into electricity called?

A

Photovoltaic effect

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9
Q

Which energy resource is considered the cleanest?

A

Solar energy

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10
Q

Multiple Choice: Which of the following is a non-renewable energy resource? A) Solar B) Wind C) Coal D) Biomass

A

C) Coal

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11
Q

What is the main environmental concern associated with burning fossil fuels?

A

Air pollution and greenhouse gas emissions

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12
Q

Fill in the blank: __________ energy is derived from the gravitational pull of the moon and sun, affecting ocean tides.

A

Tidal energy

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13
Q

What is the main advantage of using renewable energy resources?

A

They are sustainable and have a lower environmental impact.

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14
Q

True or False: Nuclear power is considered a renewable energy source.

A

False

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15
Q

What is the primary fuel used in nuclear power plants?

A

Uranium

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16
Q

Multiple Choice: Which of the following is NOT a renewable energy source? A) Solar B) Wind C) Natural Gas D) Geothermal

A

C) Natural Gas

17
Q

What is the term for the total amount of energy available in a system?

A

Energy resource potential

18
Q

Fill in the blank: __________ energy is produced from the movement of water in rivers and dams.

A

Hydropower

19
Q

What is the main disadvantage of wind energy?

A

It is intermittent and depends on wind availability.

20
Q

True or False: The energy from the Sun can be harnessed through solar panels.

A

True

21
Q

What is the environmental impact of geothermal energy?

A

It has a low environmental impact but can lead to land subsidence.

22
Q

Multiple Choice: Which energy source is most commonly used for electricity generation worldwide? A) Wind B) Natural Gas C) Solar D) Coal

A

D) Coal

23
Q

What is the main purpose of energy conservation?

A

To reduce energy consumption and environmental impact.

24
Q

Fill in the blank: __________ are systems designed to convert sunlight into usable energy.

A

Solar panels

25
Q

What type of energy conversion takes place in a hydroelectric power plant?

A

Mechanical energy to electrical energy

26
Q

True or False: Biomass energy can contribute to deforestation if not managed sustainably.

A

True

27
Q

What is the role of energy policy in a country?

A

To govern the production, distribution, and consumption of energy.

28
Q

Multiple Choice: Which of the following is a disadvantage of solar energy? A) High initial costs B) Low environmental impact C) Abundant supply D) None of the above

A

A) High initial costs

29
Q

What is the significance of the energy mix in a country’s energy policy?

A

It balances different energy sources to enhance security and sustainability.

30
Q

Fill in the blank: __________ energy is produced from the heat generated by the Earth’s core.

A

Geothermal

31
Q

What is a key challenge in transitioning to renewable energy sources?

A

Storage and reliability of energy supply.

32
Q

What is a renewable source

A

A source which can be replenished at the same rate of it being used up

33
Q

How does wind generate energy

A

Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity.

34
Q

How does solar generate energy

A

convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation

35
Q

What is tidal power

A

The rise and fall of the tides causes water to move back and forth. This can be used to turn the blades of tidal turbines.

36
Q

What is geothermal power

A

Geothermal power plants draw fluids from underground reservoirs to the surface to produce heated material. This steam or hot liquid then drives turbines that generates electricity

37
Q

Wht is wave power

A

Wave generator uses waves to make a floating generator to mov dup and down. This turns the generator and generates electricity

38
Q

What is hydroelectric pwoer

A

Rainwater that is collected in a resevoir (or pumped storage scheme) flows down a hill into turbines

39
Q

How does a pumped storage scheme work

A

Water from a lower resovoir pumps water to a higher resovoir

Dr Hamidi Year 10 Physics (5 decks)

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